Lennox Hearth INSTALLATION - MODEL L20 DVF-2ONLY, Horizontal Vent Termination Requirements

INSTALLATION - MODEL L20 DVF-2 ONLY

HORIZONTAL VENT TERMINATION REQUIREMENTS

The venting terminals should not be recessed into a wall or siding.

A =	2”	Clearances above grade, veranda, porch, deck or bal-
		cony.
B =	12”	Clearance to window or door that may be opened.
C =	9”	(USA) Clearance to permanently closed window.
	12” (CAN)
D =	24”	Vertical clearance to ventilated soffit located above the
		terminal within a horizontal distance of 2 feet (60 cm)
		from the center-line of the terminal.
E =	12”	Clearance to unventilated soffit.
F =	9”	Clearance to outside corner.
G =	6”	Clearance to inside corner.
H =	3 ft. (USA)		Not to be installed above a meter/regulator
		assembly within 3 feet (90 cm) horizontally from the
		centerline of the regulator.
I =	3 ft. (USA)		Clearance to service regulator vent outlet.
	6 ft.(CAN)

J = 9” (USA) Clearance to non-mechanical air supply inlet to building or the combustion air inlet to 12“ (CAN) any other appliance.

K = 3 ft. (USA) Clearance to a mechanical air supply inlet. 6 ft. (CAN)

L* = 7 ft. (USA) Clearance above paved side-walk or a paved driveway located on public property.

M**= 12” Clearance under veranda, porch, deck or balcony

*A vent shall not terminate directly above a side-walk or paved driveway which is located between two single family dwell- ings and serves both dwellings.

**Only permitted if veranda, porch, deck or balcony is fully open on a minimum of 2 sides beneath the floor.

•Note: Local Codes or Regulations may require different clear- ances.

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